Open System Services NFS Management and Operations Guide

Configuration and Prerequisites
A LAN object can be added at any time during the configuration of the OSS NFS subsystem.
However, after a LAN object is running, NFS clients can use OSS NFS services even though the
OSS NFS subsystem might not be fully configured. Permitting NFS clients such premature access
might compromise security by allowing access to directories not yet secured against such access.
To avoid this risk, completely configure the OSS NFS subsystem before starting a LAN interface
process.
Each OSS NFS subsystem can have multiple LAN interface processes. Each LAN interface process
corresponds to a different conventional NonStop TCP/IP process or to a complete NonStop TCP/IPv6
subsystem. All LAN interface processes in one OSS NFS subsystem have access to the same servers
and filesets.
Commands That Operate on LAN Objects
You need not perform any routine management tasks on a LAN interface process. These SCF
commands operate on LAN objects:
Immediately stops the operation of one or more LAN objects and prevents the associated clients
from accessing the OSS NFS subsystem. This command stops all pending and in-process
ABORT LAN
requests but preserves subsystem integrity. The LAN object is left in the STOPPED state and the
RESTART attribute is cleared, preventing you from restarting this LAN object from a subsequent
START SUBSYS command. To avoid this, see “SUBSYS Object” (page 33).
Adds a LAN object to the OSS NFS subsystem and allows you to configure it. After you add
a LAN object, it is left in the STOPPED state.
ADD LAN
Modifies certain attributes of a LAN object. The LAN object must be in the STOPPED state.ALTER LAN
Removes one or more LAN objects from the OSS NFS subsystem. The LAN object must be in
the STOPPED state.
DELETE LAN
Reports attributes of the LAN object. You can select the desired level of reporting detail. The
LAN object must be in the STARTED state.
INFO LAN
Reports the names of the LAN objects that meet specified criteria.NAMES LAN
Starts one or more stopped LAN objects. In conventional NonStop TCP/IP, each LAN object
has its own NonStop TCP/IP stack. In NonStop TCP/IPv6 and Parallel Library TCP/IP only one
START LAN
LAN interface process can be started for the entire TCP/IP subsystem. This command makes
the OSS NFS subsytem available to clients on that LAN.STATS LAN returns operational statistics
(counter, timer, and usage values) about the LAN object. The LAN object must be in the STARTED
state.
Returns the current state and immediate history of the LAN object.STATUS LAN
Stops the operation of one or more LAN objects in an orderly manner and stops the associated
clients from accessing the OSS NFS subsystem. This command prevents any new requests but
STOP LAN
gives you the option either to immediately stop pending requests and abort all active links or
else to allow these requests to finish before the LAN stops. STOP LAN clears the RESTART
attribute, preventing you from restarting this LAN object from a subsequent START SUBSYS
command. To avoid this, see “SUBSYS Object” (page 33).
Logs messages that pass through a LAN object. Command parameters enable you to specialize
the traced material and to stop a trace in progress.
TRACE LAN
Reports the product name, number, and release date of the specified LAN object.VERSION LAN
NETGROUP Object
A NETGROUP object represents a group of logically related hosts and, therefore, represents users
and perhaps also groups and other netgroups.
Configuration and Prerequisites
A NETGROUP object can be added at any time during configuration of the OSS NFS subsystem.
32 Management Environment for OSS NFS